External combi filter questions

[Funkyboy]

Hi All,

My mum had a Worcester green Star 4000 fitted on one of those eco grants.

A external filter wasn't fitted. Should this have been fitted or is it deemed a good to have item so not under any regulations?

Thanks

 

[ShaunCorbs]

It’s recommended to have one but more importantly was a central heating flush / clean carried out ?

 

[Funkyboy]

Yes that was done and was a clean system before changing.

 

[IND_Nick]

Fitting a filter has always been advised as 'best practice' and my understanding is that it became part of Part L Building Regulations last summer and was a requirement. Might be best talking to the boiler manufacturer just to check they will honour the warranty etc without a filter being installed.

 

[SimonG]

Boilers an expensive bit of kit, why wouldn't you go that little extra to try and keep it in good condition for as long as possible.

 

[fowlerboi]

I'm almost certain worcester do an additional year warranty for fitting their filter. There is still a warranty for without.

 

[IND_Nick]

From the 4000 installation manual, a bit long winded but they say if you don't follow guidelines it could 'invalidate the guarantee' and that a filter is 'recommended'.
I think it covers them for turning up and if the system isn't clean and has caused the failure they can refuse repair.